Question: Due to what disease for anatomical location of human leg
Paraphrase: Due to what malady for anatomical area of human leg
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P927 wd:Q6027402 . ?sbj wdt:P31 wd:Q12136 } 
Answer: ulcer of lower limbs, congenital lower extremity deformity